<!DOCTYPE html>
<html class='reftest-wait'>
  <!-- Test: if select is required and the selected option has an empty
             string value and the selection did changed,
             :-moz-ui-invalid should apply. -->
  <link rel='stylesheet' type='text/css' href='style.css'>
  <body onload="document.getElementById('s').selectedIndex = 0;
                document.documentElement.className = '';">
    <select id='s' class='invalid' required>
      <option selected value="">foo</option>
    </select>
  </body>
</html>
